igneous
Granite
Intrusive Igneous Rock
Hardness: 6-7 on Mohs scale. Color: Varies from white, pink, to gray with dark speckles. Luster: Dull to vitreous. Crystal structure: Phaneritic (coarse-grained visible crystals). Specific gravity: 2.65-2.75.
- Hardness
- 6-7 on Mohs scale
- Color
- Varies from white, pink, to gray with dark speckles
- Luster
- Dull to vitreous
Identified More igneous →
Explore Granite in the encyclopedia →Identify your own rocks.
Get a report just like this from any photo, free.
Physical properties
Hardness: 6-7 on Mohs scale. Color: Varies from white, pink, to gray with dark speckles. Luster: Dull to vitreous. Crystal structure: Phaneritic (coarse-grained visible crystals). Specific gravity: 2.65-2.75.
Formation & geological history
Formed from the slow crystallization of magma below Earth's surface over millions of years.
Uses & applications
Widely used in construction, countertops, monuments, and architectural facings.
Geological facts
Granite is the most common plutonic rock in the Earth's crust and forms the core of many major mountain ranges.
Field identification & locations
Easily identified by its speckled appearance containing quartz, feldspar, and biotite mica. Found worldwide in continental shields.
